Samsung's "next big thing" is almost here, and T-Mobile is already signing up customers.

The carrier's new teaser site all but confirms the Galaxy S6 (with an image and "six appeal" slogan), promising more news on March 1.

Samsung, meanwhile, released a teaser photo on Instagram with #TheNextGalaxy hashtag, as well as a video (below), which seems to confirm reports that the phone will have a metal exterior.

Earlier this month, Samsung sent invitation to its Unpacked event, where it is expected to launch its next-gen flagship Galaxy smartphone.

The Korean tech giant has remained mum about specifics, but rumors suggest the Galaxy S6 will include a Quad HD, 2,560-by-1,440 display and the same IMX240 camera sensor used on the Galaxy Note 4. And, the front camera gets a bump to 5 megapixels, while Samsung will reportedly drop the 16GB storage option in favor of 32GB, 64GB, and 128GB capacities.

The company is also prepping a Snapdragon 810 model, in addition to an Exynos-equipped version, packing a new Exynos 7420—a fully 64-bit chip with eight processor cores. It is also likely to run Android 5.0 Lollipop, and come with 3GB of RAM and a new LTE model designed by Samsung.

There may even be a swipe-based fingerprint sensor—similar to the iPhone's Touch ID feature.

On the hardware front, Samsung's invitation hinted at a curved handset, like the Galaxy Round or Note Edge. More recently, rumors emerged of a three-sided phone—one in which the screen wraps around the phone's sides.

We'll have to wait until March 1 for the big reveal, but curious fans can check out designers Ivo Maric and Jermaine Smit's "I am #TheNextGalaxy" concept video on YouTube.

Keep up with the Galaxy S6 news via SamsungMobile on Twitter. PCMag will have full coverage of the March 1 launch, which will be live-streamed.

T-Mobile, meanwhile, declared victory last week, claiming that the wireless provider has surpassed Sprint to become the No. 3 U.S. carrier, though that's open to interpretation.